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Cited by 338

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Modulation of the NMDA receptor by polyamines

Open access
Williams, Keith, Romano, Carmelo, Dichter, Marc A., Molinoff, Perry B.·1991·Life Sciences

Abstract

Results of recent biochemical and electrophysiological studies have suggested that a recognition site for polyamines exists as part of the NMDA receptor complex. This site appears to be distinct from previously described binding sites for glutamate, glycine, Mg++,Zn++, and open-channel blockers such as MK-801. The endogenous polyamines spermine and spermidine increase the binding of open-channel blockers and increase NMDA-elicited currents in cultured neurons. These polyamines have been termed agonists at the polyamine recognition site. Studies of the effects of natural and synthetic polyamines on the binding of [3H]MK-801 and on NMDA-elicited currents in cultured neurons have led to the identification of compounds classified as partial agonists, antagonists, and inverse agonists at the polyamine recognition site. Polyamines have also been found to affect the binding of ligands to the recognition sites for glutamate and glycine. However, these effects may be mediated at a site distinct from that at which polyamines act to modulate the binding of open-channel blockers. Endogenous polyamines may modulate excitatory synaptic transmission by acting at the polyamine recognition site of the NMDA receptor. This site could represent a novel therapeutic target for the treatment of ischemia-induced neurotoxicity, epilepsy, and neurodegenerative diseases.

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Metadata

Authors
Williams, K., Romano, C., Dichter, M. A., & Molinoff, P. B.
Venue
Life Sciences
Publisher
Elsevier BV
Published
1991
Volume
48
Issue
6
Pages
469-498
ISSN
0024-3205 (ISSN-L)
OpenAlex
W2034377493
Cited by
338
References
3
FWCI
13.81
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Modulation of the NMDA receptor by polyamines. https://app.cochat.ai/papers/10.1016/0024-3205(91)90463-l
The paper
Williams, K., Romano, C., Dichter, M. A., & Molinoff, P. B. (1991). Modulation of the NMDA receptor by polyamines. Life Sciences. https://doi.org/10.1016/0024-3205(91)90463-l

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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